{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Disease", "Chemical"], "input": "The mean + / - SD number of days of delirium during hospitalization was lower in the light sedation group than in the deep sedation group ( 0 . 5 + / - 1 . 5 days vs 1 . 4 + / - 4 . 0 days ; P = . 01 ) ."}
{"Disease": ["delirium"], "Chemical": []}